Fig 5. SAECs inhibit TGF-β induced fibroblast proliferation without affecting cell viability.

(A) HLFs were treated with 5ng/ml TGF-β in fresh SAGM or in SAEC conditioned medium for 24 hours. Cells were allowed to incorporate ³H-thymidine for another 18 hours. n = 6 per group. Data shown are mean ± SD. *** = p<0.001 by ANOVA. (B) HLFs were treated with 5ng/ml TGF-β in the presence or absence SAECs for 72 hours and HLF viability was measured by trypan blue dye exclusion method. n = 3 per group.